Radiator



` Feb. 26, 1929.

c. s. CARLBERG RADIATOR Filed April 12, 1926 Eff. Z

Patented Feb. 26, 1929.

4u1.,\1iTie.D .STATES PATENT oi-iiciI-L.-`

CARL S. CARLBllBGr,V 0F yMOUND, MINNESOTA, ASSIGNOR, BY DIRECT ANDMESNE AS,- SIGNMENTS, TO PRESSTEEL RADIATOR COMPANY,A A CORPORATION 0F MINNESOTA.

` RADIATOR.

'Appncation med Ap'fii 12, 192e. spermine. ioiie.V

This invention relates to radiators for heating the linteriors of buildings.

The invention is an improvement upon my invention disclosed in an application for face, although extremely light in weight n and requiring the circulation of only a smallv volume of heating fluid therethrough.

It is a further object to provide animproved, pressed metal radiator construction lrequiring few parts and capable of being easily assembled to form ak strong, compact device.

Another object is to provide a simpleand highly eflicient means foi closing the upper and lower ends of the several radiator cells and for forming the ends of the radiator proper.

These and other objects of the invention will be apparent from the following description inade in connection with the accompanying drawings 'wherein like characters refer to similar parts throughout the several views, and in which Fig. l is a side elevation 'of the preferred embodiment of the invention assembled. n Fig. 2 is an end elevation of the saine'. Fig. 3 Ais a fragmentary vertical section on a larger rFig. l. y

iig. 4 is a cross section on "avlarger scale taken on the line 4.--4 of Fig. 2. Fig. 5 is a fragmentary plan view on a larger scale with a portionof the top cover broken away. l

, Fig.V 6 is a detail Vertical section on the line 6&6 Aof Fig. and showing the'ineans Vfor closing the ends of the several fins. and theitting ofthe top cover thereover,7and Fig; 'is a fragmentary elevation'f'of. one of the end' plates of the radiator "detached kIn the drawings a'preferredr embodiment of the 'invention is .shown comprising in" general the .radiator proper or cell structurel and 'a framework supporting the saine at some distance above the ioor. y

f sides.

`mediately of the end insfSa thereon.

The endsv of the. radiator vproper-are.

scale taken on "the line 3-3 ofV The radiator proper is preferably entiircly constructed Aof sheet metal comprising a pair of `longitudinal side members 8, each provided with a plurality of narrow, vertically spaced corrugations or fins 8, extending the entire height thereof. `Fins 8 are preferably spaced apart a distance over three times the cross-sectional width of one of said tins andhave substantially parallel K Sidefmembers 8 terminate vat their endsin outturned flanges 8b disposed interformed by lproviding vsubstantially rectangular plates 9 provided with outturned the sides and rwelded or otherwise secured flanges 9a disposedflush with flanges 8b ofY y thereto. The structure, therefore, vhas a pair ,of parallelvertically extendingfseams at either end thereof. End plates 9 are apertured adjacent 1 the top and bottom' edgesV and the'Av material about the 4apertures drawn outwardlyto afford sleeves 9T) inwhich the internally threaded fittings 10 are weldedA or soldered, thereby eificientlysecuring said parts together'. The fittings lO are of course adapted to receive the threaded ends of the supplypipes or plugs, as the case-may be, upper and low'erf entrances to the radiator structure being Vprovided atv each end( thereof for convenience and for .reversal ofthe direction Vof the circulation -without ychang- 'ing the positlon'of thev radiator'.

The fins 8 on the two sides 8 are oppositely Ydisposed when the parts are' assembled, cooperating'to form a plurality Vof narrow cells L interconnected by a plurality of unrestricted passages b extendingthe full' height of the radiator proper. The relatively wide spaces between the ,several `fins 8 form relatively wide vertical air-passages c extending from the bottomto vthe top of the radiator'. i

The upper" andlower ends of -8a are closed,"preferablyv effected by crimping the 'edges thereo'f,'as shown in Figs. 5 and 6 and "leaving elongated, substantially Vrectangul ar openings extending centrally of the' radivthese rectangular openingsxl provide elonator structure at top and'bottom. Tofclose sides 8. Radiator sides 8 are drawn slightly outwardly, there being sufficient material in the curved upper and lower portions to form straight edges in connection with the Vinner edges of the crimped closed ends of fins 821 (see Figs. 3 and 5). The `edges of channel -mcmbers V11 are 'then easily welded to thev straight edges tlius formed, thereby effec-4 tively closing the top and bottom.

To reinforce the radiator proper and also assist in the mounting thereof on a suitable frame above the floor, vI provide a pair of tie rods 12 having fiat body portions and terminating in threaded end Yportions 12. Tie rods 12 are disposed centrally ofthe radiator structure, extending through the passages o and through the end plates 9, the threaded end portions 121L being welded or soldered to end plates 9. Preferably small sleeves are struck up in said end pla-tes, similar on a smaller scale to the sleeve 9b struck up to secure fittings 10. As shown in Fig. i1, the tie rods 12 are disposed horizontally through the top and bot-- tom portions of the radiator structure.

.I prefer to support the radiator' on la pair of frame ends 13, which may be constructed also of sheet metal lpressed to form the outwardly extending grooves 13a adapted to house the vertical seams at the radiator ends. Frame ends 13 are each provided with apertures adjacent top and bottom to accom* modate the fittings 10, and sleeves 131 formed from the stock of said frame ends by drawing the same outwardly about the apertures. Horizontal webs 13c are pressed out extending from the corrugated groove portions 113?L of the frame ends to the sleeves 13b. The threaded ends of tie rods 12 eX- tend through frame ends .13 and have secured on vthe outer sides thereof bolts 14 clamping the radiator structure within the frame. Legs 15 are formed in the lower portions of each of the vframe ends 13 and the stock between the legs 15 is cut horizontally and turned inwardly to afford `the supports 15ZL disposed below the end cells al, and cooperating to support the radiator structure.

A topfor cover 16 is provided for the radiator, Aformed preferably from `a single rectangular blank of material. A plurality of substantially rectangular perforations are made in said blank on either side .of the. lon gitudinal center line thereof, corresponding to the lair passages c between the several fins. The edges of the blank "are drawn downwardly, as are lthe edges about the sevn eral perforations,forming depending flanges which snugly 4engage the crimped edges y of the several fins and the ends thereof.

The process of making my radiator is substantially"asf-follows:

I first 'form .thel Sidemembers 8, preferably by pressingrectangiilar blanksof sheet metal into the form illustrated in the drawings. Side members 8 are then held in forms and spaced properly apart'. The end plates 9 are then formed as described, having the outtiirned flanges @gaand the fittings 10 are welded or otherwise secured to the sleeves 91),'al-l before the lends and sides are assembled. lilith side members@ spaced ,properly apart, the end plates are secured therebetween by welding the seams between vflanges 8b and 9a.. Inr forming the side niembers 8 )the upper and lower horizontal edges portions y lie in substantially'the saine line therewith and permit channel members 11 to be inset 'within said .rectangular openings with the 'sides thereof lying flush against the The iipper'and lower sides of said openings. l then with little elfort can `weld the seams between the edges of said channel members and the sides and crimped portions of the fins. The ends-of the channel members 11 are also welded to the end plates-9. p'

The threaded ends of the tie rods .12 are welded in the end plates 9 `and kthe.radiator propo' `is then mounted in the frame ends 13 supported by means ofthe outw` rdly projecting littings and the tie rods, and also by the inturned lower portions 15a 'adjaeentthe legs of the frame ends. rillie nuts 14; are api plied to the projecting threaded endsof the tie rods thereby clamping Ythe radiator proper within the frame.

This novel process enables ine toy mannfacture my device .at little expense Vandassemble the saine quickly. The ends; and sides can be accurately made in thejseparate sections and the fittings may be secured belli.)

fore the parts are assembled.y All o'jf said parts can be stamped by machinery and the top and bottom of the radiator may4 be easily. closed by means Vof the' elongated channel members employed. The seamsbetween all of theseveral parts are, securely welded together and lianges arev provided which make the welding an easy process.

The narrow cells a, having Wide parallel radiating surfaces in eombinationfwith the wider passages interconnecting the same and extendingthe full height'of the Vradiatorstructure, provide,v `a .radiator ofhigli efliciency. TheV circulation ,betweenv Vthe several cells is unrestricte dl and it may be seen that only'a small amount of heating fluid is required. Theend frames andtie rods clamp the radiator therebetweemi-reinforcing thesame against the pressiireof the heating fluid and moreover supporting the device the proper distance above the floor.

From the foregoing description it will be seen that I have invented an improved radiator construction and process for making the same capable of being manufactured at little expense and constructed preferably of sheet metal throughout.

lt will of course be understood that various changes may be made in the formdetails, proportions and arrangement of parts without departino` from the scope lof the invention.

What is claimed is:

i. A radiator structure comprising spaced side members each having a plurality of Substantially vertical outwardly projecting hollown fins and each lhaving outwardly extending vvertical flanges as eudsdisposed intermediately of Athe end fins thereof and at right angles thereto, vand members connect- 1 ing said sides, each comprising aplate provided with outwardly extending yflanges secured to the flanges of said sides, said plates being'recessed, and fittings secured within said recessed portions, and means for Vclosing the top and bottom of said structure.y

2. Radiator structure comprising a pair of oppositely disposed spaced sides each having a plurality of verticaloutwardly 'projecting spaced hollow fins, fiat end members connecting said sides and extending the'full height thereof, means for closing the upper and lower ends of said fins, the material between said fins at the ltop and bottom of the structure being extended outwardly to form substantially continuous rectilinear edges at the top and bottom of the structure, said edges defining with said end'members rectangular openings, and channel members having upturned longitudinal welding edges inset between the rectilinear edges of said sides and .having their end edges abutting said end members. H

3. Radiator structure comprising'va pair of oppositely disposed spaced sides each having a plurality `of vertical outwardly disposed relatively narrow hollow fins formedv therein, said channels of said two sides being oppositely .disposed in pairs, the

upperfand lower ends of said channels ber ing closed, flat end members connecting said lsides` and extending the full height thereof,

and the. material between said channels eX- tending outwardly and rectilinearly'at the top andv bottom ofthe 'structure toafford rectilinear welding edges defining with said. end membersrectangular openings in the top and bottom of the structure, and chan-- nel members having rectilinear uptuined longitudinal edges adapted to be inset within said first mentioned' rectilinear Welding edges, said edges being welded together and the end edges of said channel members being.V

welded with said flat end members.

t, Radiator structure having in combination sides, each having a plurality of substantially veitical outwardly projecting rhollow fins, ends connecting said sides having apertures therethrough, fittings for connectionfto a circulating` system secured to the apertured portions of said ends and pro jecting outwardly therefrom, kmeans for "drawingsaid' ends together, frame members at' either end of said structure having legsy at their lower endsadapted to support saidy sides and ends above the floor and portions of said frames adjacent their-lower extremi- -ties being cut and turned inwardly to en- Y.gage the under side of said ends forsupporting the same. Y l y In'testimony whereof I aflix my signature.

CARL S. CARLBERG. 

